Delivery device.



H. E. LINDBLADH.

DELIVERY DEVICE.

APPLICATION FILED FEB. 2l. I9I6.

Patented Mar. 27, 1917.

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H E. LINDBLADH.

DELIVERY DEVICE.

APPLICATION FILED FEB. 21. IsIe.

Patented Mar. 27, 1917.

2 SHEETS-SHEET 2.

UNITE @AES FATFT FFIQF.

HABMON E. LINDBLADH, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO TI-.IE LINDBLADH CORPORATION, A CORPORATION OF MASSACHUSETTS.

DELIVERY DEVICE.

Application led February 21, 1916.

To all 'whom t may concern:

Be it known that I, HARMON E. LIND- BLADH, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Delivery Device, of which the following is a specification.

My invention relates to sheet-delivery devices, it being especially adapted for use in connection with ruling machines or like apparatus, in which sheets of paper are conveyed by endless carriers from inlrsapplying instrumentalities to a receptacle in which the sheets are gathered, often before the ink is set. Its chief purposes are to obtain an even, unfailing delivery of sheets to the receptacle, and to remove all possibility of smearing the ink. The invention consists of the features and combinations hereinafter described and more particularly pointed out in the claims.

In the accompanying drawings, in which similar characters of reference designate like parts throughout, Figure 1 is the central vertical longitudinal section through the delivery end of a ruling machine to which one embodiment of my invention is applied; Fig. 2 is a full horizontal section on the line 2 2 of Fig. 1 and Fig. 3 is a full vertical sectional detail of the delivery apparatus on the line 8-3 of Fig. 1. The sections are taken in the directions indicated by the arrows.

At 10 appears the delivery end of the frame of a ruling machine, with a portion of its conveying elements consisting of cloths or wide belts 11 and coperating cords 12, these traveling over suitably positioned rolls 18. The lower cloth or conveyer 14 furnishes the final carrier of sheetsafter the ink is nearly dried, passing horizontally through the bottom portion of the frame. At its outer end, instead of turning about a roll adjacent to another roll over which runs an alined cloth ofthe delivery device (commonly called a lay-boy), it continues on over a guide or bed-roll 15 and a driven end-roll 16 to the final receptacle or lay-box 17. Its terminal portion between the rolls 15 and 16 coperates with upper delivery elements, generally designated by the letter A, and thus furnishes a part of the lay-boy. The bearings of the rolls 15 and 16 are mounted to move horizontally in guides 18, those for the roll 15 being carried by the frame 10, while those for the roll 16 are fixed to auxil- Specifcaton of Letters Patent.

Patented Mar. 27, 191'?.

Serial No. 79,543.

iary frame members 19 belonging to the delivery device. To adjust the bed-rolls with respect to the upper elements, screws 20 are threaded through the ends of the guides and engage the bearings so that they may be moved back and forth at the will of the operator.

1n the upper portion of the frame members 19 are formed vertical ways 21, here shown as two in number, for each frame member, and in these ways move supporting members in the form of rods or bars 22, 22. Supported by these rods are two carrierfranies, each consisting of two sleeves 23, 23 surrounding the rods and having a preferably integral connecting bar 24 and downwardly inclined carrier bars 25, 25 upon the lower extremities of which are rotatably supported, as for example on short stub shafts, a rear roll 26 and a forward roll 27, the latter of which is shown as of greater diameter. The rolls 26 and 27 are preferably so positioned that their axes are vertically over those of the rolls 15 and 16, respectively, but this may be varied by the adjustment of the latter, it sometimes being desirable, as will be hereinafter pointed out, to have the rolls 27 bear upon the cloth somewhat at the rear of the roll 16. The sleeves 23 and bars 24 are so related that the latter converge toward the longitudinal aXis of the cloth 14 in the direction of the advance of the sheets, the rolls 27, 27 being nearer together than are the rolls 26, 26 (Figs. 2 and 3). Operating over the pairs of rolls 26 and 27 are upper pressure members in the form of tapes or narrow belts 28, 28, which are in normal contact with the cloth 14, resting thereon by gravity under the iniiuence of the weight of the elements at A by virtue of the freedom of the supports 22 to move in their ways. Secured to the outside of each bar 24 are a pair of arms 29, 29 which curve first outwardly and then downwardly and inwardly, as is best shown in Fig. 3 of the drawings. These arms carry lifting bars 30, which transversely of the cloth 14 are curved downwardly and longitudinally are upwardly inclined, bearing at their rear ends upon the cloth 14 just forward of the axes of rolls 26 and diverging upwardly from the cloth to points over the rear of the receptacle 17. These bars, like the pressure-belts 28, converge toward the receptacle. The two sets of upper delivery or pressure elements may be positioned laterally over any portion of the cloth 14 and there Xed by set-screws 31 passing through the bars 24 and contacting with the supporting rods 22.

Inthe use of my improved delivery device, the frames carrying the lifting bars 30, 30 and endless pressure members or belts 28, 28, are so adjusted upon the supports 22 and fiXed in such positions by their setscrews 31 that they contact symmetrically with the edges of the sheets advanced to them by the cloth 14, the bars 30 lying slightly within the lateral edges of the sheets. The belts 28 and their supporting rolls are rotated by the frictional engage-A ment of the former with the cloth 14. As the sheets of paper, of which one is indicated as S in Fig. 3 of the drawings, are advanced by the cloth 14, the forward end of each, after being engaged by the belts 28, rides up upon the lower extremities of the bars 30 which are in Contact with the cloth and is thereby caused to assume the shape of a flattened trough. Further advance of the sheet by the cloth causes it to come under the influence of the converging belts, which by the lateral component of their frictional force gradually draw the edges in, raising the center, as will be seen in Fig. 3, so that by the combined effect of the bars and belts the sheet assumes a transversely corrugated form. It will be obvious that when so corrugated, the sheets will be very resistive to longitudinal bending. Therefore, as each is projected from the delivery device, it falls into the receptacle without bending and without danger of the forward end being doubled under. The velocity of the sheet is also suiiicient to carry it across the receptacle into contact with the stops 32 before it contacts with the previously delivered sheet. This causes each sheet to fall vertically upon the accumulating pile, obviating any possibility of smearing the ink. If there is a tendency for'the last delivered sheet to strike the upper one of the pile in its upward movement, this may be corrected by adjusting the roll 16 until the rolls 27 bear upon the cloth 14 at the rear of the roll 16, thus producing a depression therein. This curves the forward extremity of the sheet upward slightly and causes it to advance farther before falling upon the pile.

It is often necessary in devices of this character to remove the lcloths and tapes for cleansing and other purposes. As these have heretofore been constructed, it is customary to cut the tapes which correspond to those which I have designated by the numeral 28, because the continuity of the shafts carrying their supporting rolls makes it impossible to do otherwise. With the present organization, however, the independent mounting of the rolls 26 and 27 upon the short shafts enables the operator to Withdraw the tapes 28 without cutting and to similarly return them, thus saving time and labor.

It should be observed that the carrying the cloth 14 of the main machine into the layboy to serve as an element thereof, prevents any possibility of the sheets adhering to the cloth through the generation of the static charge often present in sheet-conveying devices having traveling elements in frictional i contact, and thereby being carried over the end of the cloth before it reaches the lay-boy.

I claim as my invention and desire to secure by Letters-Patent: Y

1. In a sheet-delivery device, a receptacle, means for carrying sheets to the receptacle, and separated means for coperation with the upper surfaces of said sheets to produce therein between the means a raised corrugation, and means for lifting the outer edges of the sheets.

2. In a sheetdelircry device, a receptacle, means for carrying sheets to the receptacle, a plurality of means converging in the direction of advance of the carrier means for coperation with the upper surfaces of said sheets before their delivery to the receptacle, and lifting members contacting with the under surfaces of the sheets.

3. In a sheet-delivery device, a receptacle, means for carrying sheets to the receptacle, a plurality of members converging in the di rection of advance of the carrier means for cooperation with said sheets before their delivery to the receptacle, and independently adjustable mountings for said members whereby their position transversely of the sheets may be varied.

4. In a sheet-delivery device, a receptacle, means for carrying sheets to the receptacle, and plural traveling and relatively iXed sheet-corrugating means converging in the direction of advance of the carrier means and cooperating with the upper and under surfaces of said sheets before they are delivered to the receptacle.

In a sheet-delivery device, a receptacle, a conveyer delivering thereto, traveling pressure members coperating with the conveyer, and lifting means contacting with the conveyer outside the pressure members, the conveyer extending continuously across the device beneathl the pressure members and lifting means.

6. In a sheet-delivery device, a receptacle, a conveyer delivering thereto, traveling belts coperating with the conveyer, and bars also cooperating with the conveyer outside the belts to engage the edges of the sheets, the belts acting independently of the bars to corrugate the sheets. s

7. In a sheet-delivery device, a receptacle, a conveyer delivering thereto, carriers mounted at opposite sides of the conveyer for movement independently of one another,

a plurality of rolls rotatable upon each carrier, and a belt traveling upon the rolls of each carrier and contacting with the conveyer.

8. In a sheet-delivery device, a receptacle, a conveyer delivering thereto, carriers mounted at opposite sides of the conveyer for movement independently of one another, a plurality of rolls rotatable upon each carrier, a belt traveling upon the rolls of each carrier and contacting with the conveyer, and bars carried by the carriers for coperation with the sheets.

9. In a sheet-delivery device, a receptacle, a conveyer delivering thereto, carrier-frames mounted at opposite sides of the conveyer for movement independently of one another, a plurality of rolls rotatable upon each frame, a belt traveling upon the rolls of each iframe and contacting with the conveyer, arms projectingfrom the outer sides oi the frames, and bars carried by the arms for coperation with the sheets.

l0. In a. sheet-delivery device, a receptacle, a conveyer delivering thereto, frames mounted at opposite sides of the conveyer for movement independently of one another, a plurality of rolls rotatable upon each frame, a belt traveling upon the rolls of each frame and contacting with the conveyer, arms projecting from the outer sides of the frames and being curved downwardly and inwardly, and bars carried by the arms for coperation with the sheets.

l1. In a sheet-delivery device, a receptacle, a conveyer delivering thereto, a support extending across the conveyer, ways in which the support is free to move vertically, frames adapted for movement on the support independently of one another, means for fixing the frames in place upon the support, and pressure members carried by the frames for cooperation with the sheets.

l2. The combination with a machine for applying ink to the sheets and a stationary receptacle for sheets, of a continuous inkdrying conveyer traveling through the machine to the receptacle, and a delivery device situated above and coperating with the conveyer to project the sheets into the receptacle adjacent to the receptacle, said conveyer thus furnishing a portion of the delivery device.

Signed at Boston` in the county of Suit- `folk and State of Massachusetts, this 17th day of February, 1916.

HARMON E. LINDBLADI-I.

Copies of this patent may be obtained for ve cents each, by addressing 'the "Commissioner of Patents, Washington, D. C. 

